The Flash Season 5 Finale: What Does The Ending Really Mean?

2. Killer Frost Gets A New Outfit - Will Season 6 Be A Big Year For Her?

Another character that many thought we might see the last of this season was Caitlin Snow/Killer Frost as similar rumours suggested that actress Danielle Panabaker was also gearing up to exit the show. However, 'Legacy' seems to have silenced those rumours once and for all.

After Cisco revealed that he had left her a gift, Caitlin went to the workshop to find a brand new costume waiting for her. Although viewers weren't treated to a sneak peek, they couldn't help but notice as Caitlin's eyes turned white - essentially letting us all know that Killer Frost was indeed impressed with it.

Killer Frost had quite the role to play this year as Caitlin found herself having to work hard to overcome a mind block that DeVoe had cursed her with and, when she finally did so, she had to deal with a number of family-related issues. As all of this went down, Team Flash ended up discovering that she was the only one of them that was immune to Cicada's dagger - making her their ultimate weapon.

With a potential new look next season, could Killer Frost be in for an even bigger year? Let's hope so!